Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Dvele Construction in Sunnyvale, CA | Rowan Construction Group Mountain View
We provide independent Dvele construction service across Sunnyvale, from panel-to-foundation re-leveling on clay soils to Self-Powered Home interconnection through Silicon Valley Power. The one thing that makes our Dvele work here different: we’ve learned that Sunnyvale’s expansive alluvial clay and SVP’s separate utility process will defeat an install planned against standard PG&E assumptions every time. Call Dvele sales & service at (669) 215-4852 for a free written estimate before any work starts.
Why Sunnyvale Residents Choose Us for Dvele Service
We’ve worked on Dvele LUMO series homes and Self-Powered Home platforms across the South Bay since the first modules started landing here, and we’ve learned what the factory manual doesn’t tell you about this ground. Grant Rowan grew up in Beverly Hills, learned the trade at Los Angeles Trade-Technical College on framing, concrete, and finish work, and has been building in this corridor long enough to know that a Dvele set on a Sunnyvale slab without accounting for seasonal clay movement is a callback waiting to happen.
We’re not authorized by Dvele. We’re not endorsed. What we are is accountable - one crew, one written scope, one flat price before anyone picks up a tool. Under Clause 1 of the Haven Standard, that price is delivered in writing. Under the 365-Day Done Right Promise, if it’s not done right, we make it right. Every visit includes a documented photo record, standard. Our technicians are background-checked and uniformed. A live person answers calls 24/7. And because we source Dvele-specific structural connectors and flashing profiles through the OEM channel when available, the repair matches the original engineering rather than a best-guess field adaptation.
Measure twice, write it down, then build it that way.
Common Dvele Construction Problems We Solve in Sunnyvale

- Panel-to-foundation interface movement. Dvele modules land on Sunnyvale’s expansive alluvial clay and bay-mud soils that swell in winter and shrink in summer. That seasonal cycle telegraphs through the mating joint, racking doors and cracking drywall at the module seams. We see this most in the 1950s-1970s ranch neighborhoods like Birdland and Lakewood, where original slab-on-grade construction meets modern modular set without soil mitigation.
- Envelope and roof-to-wall flashing breaches. Sunnyvale’s roughly 300 sunny days per year mean water intrusion stays hidden longer. The sheathing rots quietly behind stucco until a pre-sale or pre-remodel inspection reveals it. On Dvele homes, the factory panel joints and roof-to-wall transitions are the typical failure points.
- Module seam and MEP chase joint separation. As the structure settles into clay-driven movement, interior wall-to-ceiling transitions open visibly and penetrations flex. The MEP chase - the factory-built mechanical/electrical/plumbing corridor - is particularly sensitive to this racking.
- Silicon Valley Power interconnection failures. Dvele’s Self-Powered Home platform with rooftop PV and battery storage must clear SVP’s own submittal and inspection process, not PG&E’s. Out-of-town Dvele installers routinely stall here because their standard electrical package doesn’t match SVP’s requirements for service mast location, grounding, or inverter spec.
- Structural additions on outdated shear-wall assemblies. Many Sunnyvale Dvele retrofits involve expanding a 1,100 sq ft ranch into something larger. The original home’s 100A panel and pre-modern shear walls weren’t designed for the lateral loads of a two-story Dvele addition or ADU panelized configuration.
Before
AfterDvele Service in Sunnyvale: What Local Conditions Mean for Your Equipment
Here’s the thing a generic Dvele page will never tell you: Sunnyvale’s city-owned utility, Silicon Valley Power, controls electrical service for most of the city. That means every Dvele Self-Powered Home install - every rooftop PV array, every battery backup, every EV charger - goes through SVP’s interconnection process, not PG&E’s. The submittal requirements, inspection timelines, and equipment specifications are different enough that we’ve seen Dvele installs planned on PG&E assumptions sit in SVP plan check for weeks while the owner pays carrying costs on an unfinished house. In the Birdland neighborhood, we worked a job where the original Dvele electrical package had been spec’d for PG&E territory; we had to field-rework the service mast location, re-spec the inverter, and re-submit through SVP before the system could be energized. The factory panel openings didn’t match SVP’s preferred penetration pattern, so we cut, re-framed, and re-flashed to code. That’s not a Dvele defect. That’s a Sunnyvale reality. Contractors who don’t know the difference waste your time.
The same clay soils that complicate Dvele foundation interfaces also drive Kitchen Remodeling in Sunnyvale and other addition demand before any work can be permitted. We’ve re-leveled slabs in Cherry Chase that had cracked enough to throw the module plumb out of tolerance. The work isn’t glamorous. It just has to be right before the next phase starts.
Dvele Models & Products We Service in Sunnyvale

We work across Dvele’s full residential platform: the LUMO series modular single-family homes, the Self-Powered Home system with integrated PV and battery storage, two-story and ADU panelized modular configurations, and custom modular plans built on Dvele’s off-site structural panel system. Our approach to parts is straightforward: Dvele-specific structural connectors, flashing profiles, and envelope components come through the OEM channel when available. For non-structural trim and finish items where lead time is the constraint, we use engineered equivalents and document the substitution in the photo record. We don’t guess on structural items. A Dvele module is almost always worth repairing rather than replacing unless the structural panel itself is compromised. Most of what we see in Sunnyvale is interface, flashing, and finish work - not a failed system.
Dvele Service Pricing in Sunnyvale
Every project is quoted with a flat written price and written scope before work begins. No change proceeds without a signed change order. Here’s what Dvele construction work runs in this market:
| Service | Price Range in Sunnyvale |
|---|---|
| Home Addition | $45,000-$130,000 |
| ADU Construction | $90,000-$220,000 |
| Roof Repair | $400-$1,800 |
| Roof Replacement | $8,000-$20,000 |
What drives cost: the condition of the existing foundation and slab, whether SVP interconnection rework is needed, the extent of envelope remediation, and whether structural panel damage exists or it’s strictly interface and finish work. A free estimate includes a site walk, photo documentation of current conditions, and a written scope with line-item pricing. Call (669) 215-4852 to schedule yours.
Serving Sunnyvale, CA - Our Local Coverage Area

We’re based in the Sunnyvale area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Dvele Construction in Sunnyvale
Can you work on a Dvele home in Sunnyvale if you are not a Dvele-authorized builder?
Yes. We are a fully independent contractor. We follow Dvele’s published panelization, MEP chase, and envelope details on every job, but we are not authorized, sponsored, or endorsed by Dvele. That independence means you get a single point of accountability from site prep through final, with no filter between the field and the decision-maker. Call (669) 215-4852 for a free estimate.
Why do Dvele module seams and doors move in Sunnyvale specifically?
Sunnyvale sits atop expansive alluvial clay and bay-mud soils that swell and shrink seasonally. That movement telegraphs through the panel-to-foundation interface, racking the module joints and throwing doors out of plumb. Contractors who don’t account for this during set or remediation see callbacks within two seasons. Call (669) 215-4852 and we’ll show you what we found on a recent Birdland job.
How does Silicon Valley Power affect a Dvele solar or battery install in Sunnyvale?
SVP controls electrical service for most of Sunnyvale, not PG&E. Dvele’s Self-Powered Home interconnection must clear SVP’s submittal requirements, inspection timelines, and equipment specifications. We’ve seen installs planned on PG&E assumptions stall in SVP plan check for weeks. We field-rework factory panel openings and re-spec inverters to match SVP’s process. Call (669) 215-4852 for an exact quote on your Self-Powered Home interconnection.
Do you need to pull a Sunnyvale permit before repairing Dvele panel or envelope issues?
Structural, electrical, and envelope work on a Dvele home requires permits through Sunnyvale’s municipal building department - a charter city with its own plan-check staff, separate from Santa Clara County. We pull permits and pass inspections as standard on every job; the permit status is documented in your photo record. Call (669) 215-4852 to confirm what’s needed for your specific scope.
Can a Dvele home in Sunnyvale be expanded with an addition or ADU?
Yes. Dvele’s two-story and ADU panelized modular configurations are designed for expansion, and Bathroom Remodeling - Sunnyvale and other projects benefit from the area’s high land values that make densification the financially rational move. We assess the existing foundation for clay-driven movement, upgrade shear walls and electrical service as needed, and coordinate the new Dvele modules with SVP if power is part of the scope. Home additions run $45,000-$130,000; ADU construction runs $90,000-$220,000. Call (669) 215-4852 for a written estimate.
Service Areas Near Sunnyvale

We work the full corridor south of the bay. Our crew is regularly in Dvele service in Mountain View, including projects near Castro Street and the downtown blocks, and Dvele service in Los Altos. We also cover Sunnyvale service area proper, plus Palo Alto, Los Altos Hills, and Stanford. Same standards, same written price before work starts, same photo record on every visit.
Book Your Dvele Service in Sunnyvale Today
Call (669) 215-4852 to schedule your free estimate. We’ll walk the site, document current conditions with photos, and deliver a written scope and flat price before any work starts. No surprises, no change orders without your signature, and the 365-Day Done Right Promise on every job.
Written by Grant Rowan, Owner at Rowan Construction Group Mountain View, serving Sunnyvale and the South Bay since 2007.







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